68724
domain: N
Appears in sequences
- Theta series of D8 lattice with respect to midpoint of edge.at n=20A045820
- Numbers k such that binomial(5k, k) + 1 is prime.at n=19A125243
- Number of nX2 0..3 arrays with row sums equal and column sums unequal to adjacent columns.at n=7A203026
- G.f.: (Sum_{k>=1} x^k/(1-x^k) * Product_{k>=1} 1/(1-x^k) )^2.at n=16A305120